sulcus

[ suhl-kuhs ]

/ ˈsʌl kəs /

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noun, plural sul·ci

[suhl-sahy]. /ˈsʌl saɪ/.

a furrow or groove.

Anatomy. a groove or fissure, especially a fissure between two convolutions of the brain.

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Origin of sulcus

1655–65; Latin: furrow

OTHER WORDS FROM sulcus

sub·sul·cus, noun, plural sub·sul·ci.

Words nearby sulcus

Sukkur, sukuk, Sukuma, Sulawesi, sulcate, sulcus, sulcus of sclera, Suleiman I, sulf-, sulfa, sulfadiazine

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use sulcus in a sentence

It is then carried across the sulcus and is made to emerge through the opposite lip of the cervix.
A System of Operative Surgery, Volume IV (of 4)|Various
Median line with a sulcus on each side; central area quadrate.
The Diatomaceae of Philadelphia and Vicinity|Charles Sumner Boyer
The single median sulcus on the anterior face of each incisor is typical of the genus Cratogeomys.
Pleistocene Pocket Gophers From San Josecito Cave, Nuevo Leon, Mexico|Robert J. Russell
It is rather robust, very much recurved and grooved by a deep vertical sulcus upon its antero-internal face.
On The Affinities of Leptarctus primus of Leidy|J. L. Wortman

Sulcus longitudinalis in superiore latere perforatus serie punctorum.
The Journal of the Proceedings of the Linnean Society - Vol. 4|Various

British Dictionary definitions for sulcus

sulcus

/ (ˈsʌlkəs) /

noun plural -ci (-saɪ)

a linear groove, furrow, or slight depression

any of the narrow grooves on the surface of the brain that mark the cerebral convolutionsCompare fissure

Word Origin for sulcus

C17: from Latin

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for sulcus

sulcus

[ sŭl′kəs ]

n. pl. sul•ci (-kī, -sī)

Any of the grooves on the brain surface, bounding the gyri; a fissure.

A long narrow groove or depression, as in an organ or a tissue.

Other words from sulcus

sul′cal adj.